Messages in this thread | | | From | Pengfei Li <> | Subject | [PATCH v2 0/4] mm, slab: Make kmalloc_info[] contain all types of names | Date | Tue, 10 Sep 2019 01:07:11 +0800 |
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Changes in v2 -- 1. remove __initconst (patch 1/5) 2. squash patch 2/5 3. add ack tag from Vlastimil Babka
There are three types of kmalloc, KMALLOC_NORMAL, KMALLOC_RECLAIM and KMALLOC_DMA.
The name of KMALLOC_NORMAL is contained in kmalloc_info[].name, but the names of KMALLOC_RECLAIM and KMALLOC_DMA are dynamically generated by kmalloc_cache_name().
Patch1 predefines the names of all types of kmalloc to save the time spent dynamically generating names.
The other 4 patches did some cleanup work.
These changes make sense, and the time spent by new_kmalloc_cache() has been reduced by approximately 36.3%.
Time spent by new_kmalloc_cache() 5.3-rc7 66264 5.3-rc7+patch 42188
Pengfei Li (4): mm, slab: Make kmalloc_info[] contain all types of names mm, slab: Remove unused kmalloc_size() mm, slab_common: Make 'type' is enum kmalloc_cache_type mm, slab_common: Make initializing KMALLOC_DMA start from 1
include/linux/slab.h | 20 --------- mm/slab.c | 7 +-- mm/slab.h | 2 +- mm/slab_common.c | 103 +++++++++++++++++++++++-------------------- 4 files changed, 60 insertions(+), 72 deletions(-)
-- 2.21.0
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